When a window is the easiest way into your home or business, you want protection that stops a break-in without turning your property into a fortress. That’s exactly what armoured glass in Toronto is designed to do. Made from clear polycarbonate security panels, armoured glass hardens vulnerable windows and doors against forced entry while keeping your view, your natural light and your curb appeal. This guide explains how it works, how it compares to security film, window bars and laminated glass, which thickness you need, and the questions to ask before you get a quote.

What Is Armoured Glass?

“Armoured glass” is a common term for polycarbonate security glazing: a clear, rigid panel installed over or in place of a vulnerable pane. Window Guard uses premium Lexan-brand polycarbonate sheets, a material engineered specifically for safety and security glazing.

Polycarbonate looks like glass but behaves very differently under impact. Instead of shattering, it flexes and absorbs the blow. It is hundreds of times stronger than standard glass and far more impact-resistant than tempered glass and many acrylics. That means a brick, crowbar or hammer that would instantly break an ordinary window simply bounces off.

How it’s installed

Depending on your windows, armoured glass panels can be:

Retrofitted into existing frames, replacing or backing up the current pane
Mounted as an interior shield behind your existing glass, so the exterior of the building doesn’t change
Custom-fit to doors, sidelights and transoms, the spots burglars target most

Most residential and small storefront projects can be measured and installed in a single day.

Who Needs Armoured Glass?

Street-level retail and storefronts

Smash-and-grab thieves rely on speed. A panel that can’t be broken in a few seconds takes away their advantage. Armoured glass is recommended for retail windows, glass entry doors and display windows, especially for stores carrying high-value goods. For a broader security plan, see our guide to storefront smash-and-grab fixes.

Clinics, pharmacies, schools and public buildings

Buildings with street-facing glass and valuable equipment or medication benefit from protection that still looks welcoming. Clear polycarbonate keeps the space bright and open, unlike shutters or bars.

Cash counters and service windows

Thicker panels add a strong, transparent barrier at points of sale and reception areas.

Homes with vulnerable ground-floor or basement windows

Basement windows, rear patio doors and windows hidden from the street are prime entry points. Armoured glass protects them without the “jail-bar” look. Our article on basement window break-ins explains why these openings are targeted.

Armoured Glass vs Security Film vs Window Bars vs Laminated Glass

Option	How it protects	Look	Best for
Armoured glass (polycarbonate)	Rigid panel resists repeated heavy blows without breaking	Clear, looks like standard glass	High-risk storefronts, doors, cash counters, hidden windows
Security window film	Holds shattered glass together and delays entry	Virtually invisible	Homes and businesses wanting affordable, invisible protection across many windows
Window bars	Physical steel barrier	Visible, industrial	Basements, rear windows, where appearance matters less
Laminated glass	Interlayer holds broken glass in place	Clear	New construction or full glass replacement

Security film is an excellent, cost-effective layer for most properties because it slows intruders down. Armoured glass goes a step further: rather than holding broken glass together, the panel itself doesn’t break. Many high-risk properties combine the two, using film on most windows and armoured glass on the most exposed openings. For more comparisons, read security window film vs window bars and security film vs laminated glass.

Choosing the Right Thickness

0.25-inch panels

Ideal for offices, homes and low-to-medium risk storefronts looking for an affordable upgrade. They provide strong impact resistance for most residential and light commercial situations.

0.5-inch panels

Add extra stiffness and resistance for higher-risk doors, cash counters and exposed street-level windows, where a determined intruder may strike repeatedly.

Optional hard-coat surfaces help resist abrasion and make cleaning as simple as regular glazing, which is a smart choice for busy commercial entrances.

Benefits Beyond Break-In Protection

Clear sightlines and natural light: crystal-clear polycarbonate resists yellowing and keeps interiors bright.
Curb appeal: once framed in, most installations are virtually invisible.
Vandalism and storm protection: panels stand up to thrown objects and flying debris.
Noise reduction: a solid polycarbonate layer can noticeably reduce street noise compared to single-pane glass.
Less downtime: fewer broken windows means fewer emergency board-ups, glass replacements and lost business days.
Flexibility: panels can typically be removed or replaced later without rebuilding the window.

What Affects the Cost of Armoured Glass?

Every project is quoted to the opening, but these factors drive the price:

Size and number of openings
Panel thickness (0.25″ vs 0.5″)
Coatings, such as abrasion-resistant hard-coat
Installation method: retrofit into frames vs interior shield vs custom framing
Access: ground-floor vs elevated or hard-to-reach glass

When comparing options, weigh the up-front cost against the cost of a single break-in: replacement glass, emergency board-up, stolen inventory, cleanup and closed days. For high-risk storefronts, one prevented smash-and-grab can cover much of the investment. For typical film pricing, see how much window security film costs in Toronto.

What to Expect During Installation

Adding armoured glass is far less disruptive than most property owners expect. A typical project follows four steps:

Security assessment: we look at how your property could be entered, which openings face the street or are hidden from view, and how each window and door is framed.
Measuring and recommendation: each opening is measured precisely, and we recommend panel thickness, coatings and the right mounting method for your frames.
Custom fabrication: panels are cut to fit your openings, so edges are clean and sightlines stay clear.
Installation: panels are secured into existing frames or mounted as an interior shield. Most homes and small storefronts are completed in a single day, so businesses can stay open.

Caring for polycarbonate panels

Clean armoured glass with mild soap, water and a soft microfibre cloth. Avoid abrasive pads, ammonia-based glass cleaners and scrapers, which can dull the surface. If your entrance sees heavy traffic, ask about a hard-coat surface for extra abrasion resistance.

Combine it with other layers

Armoured glass works best as part of a layered plan. Pair it with strong locks and latches, security plates on doors, and cameras or alarm monitoring, so intruders face multiple barriers and a higher chance of being caught.

Frequently Asked Questions

Is armoured glass actually glass?

No. It’s clear polycarbonate (Lexan) security glazing. It looks like glass but is far more impact-resistant and won’t shatter.

Is armoured glass bulletproof?

Standard polycarbonate security panels are designed for forced-entry and impact resistance, not ballistic protection. Bullet-resistant glazing is a separate, specially rated product.

Will armoured glass make my windows look industrial?

No. Clear polycarbonate is designed to look like standard glass, so most installations are virtually invisible once framed in.

Can armoured glass be added to my existing windows?

In many cases, yes. Panels can be retrofitted into existing frames or added as an interior shield without changing the exterior glass.

How long does installation take?